Article
Entomology
Mary E. DuPre, David K. Weaver, Tim F. Seipel, Fabian D. Menalled
Summary: Ground beetles are important natural predators in agroecosystems, but their response to different cover crop rotations and termination methods varies. Our study found that ground beetle activity and community composition were influenced by the timing and type of cover crops used, suggesting potential implications for pest management in dryland cropping systems.
JOURNAL OF INSECT SCIENCE
(2021)
Article
Agronomy
Taotao Yang, Ruoyu Xiong, Xueming Tan, Shan Huang, Xiaohua Pan, Lin Guo, Yongjun Zeng, Jun Zhang, Yanhua Zeng
Summary: In southern China, climate warming poses a threat to rice production in double rice cropping systems. This study investigated the responses of high-quality indica rice to post-anthesis warming. The results showed that post-anthesis warming did not affect grain yield but had negative effects on grain milling and appearance qualities while improving rice eating and nutritional qualities.
EUROPEAN JOURNAL OF AGRONOMY
(2022)
Article
Agronomy
Dengpan Xiao, De Li Liu, Puyu Feng, Bin Wang, Cathy Waters, Yanjun Shen, Yongqing Qi, Huizi Bai, Jianzhao Tang
Summary: This study used the APSIM model to explore the impacts of five different cropping systems under future climate change in the North China Plain. Results showed that cropping system adjustment significantly reduced the amount of water required for irrigation, thus decreasing groundwater overdraft to a certain extent.
AGRICULTURAL WATER MANAGEMENT
(2021)
Article
Environmental Sciences
Huayan Zhang, Erik A. Hobbie, Puyu Feng, Ling'an Niu, Kelin Hu
Summary: In this study, a long-term experiment was conducted in the North China Plain to evaluate different farming management practices in response to climate change. The results suggest that conservation agriculture practices, specifically no-tillage method combined with low nitrogen fertilizer and high straw addition, can enhance crop yields, increase soil organic carbon, and mitigate greenhouse gas emissions for sustainable agricultural production under future climate change scenarios.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Xueqi Liu, Yansui Liu, Zhengjia Liu, Zongfeng Chen
Summary: Climate warming has had significant impacts on agriculture in China, leading to the expansion of suitable cultivated areas and changes in multiple cropping indices. While some regions have seen increased multiple cropping indices, peri-urban areas and provinces with out-migration of agricultural labor have experienced declines. The response of current land systems to these changes has not been timely, highlighting the need for strategic agricultural development considering regional conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Song Liu, Jia Xing, Shovan Kumar Sahu, Xiliang Liu, Shuchang Liu, Yueqi Jiang, Hongliang Zhang, Siwei Li, Dian Ding, Xing Chang, Shuxiao Wang
Summary: The study revealed the causes of dust storms in Northern China in March 2021, focusing on the impact of soil types, density, and spatial resolution on the occurrence of dust storms. It emphasized the strong correlation between wind speed, frequency, and intensity of dust phenomena, calling for enhanced monitoring and prevention measures.
ENVIRONMENTAL RESEARCH LETTERS
(2021)
Article
Meteorology & Atmospheric Sciences
Min Luo, Yuzhi Liu, Run Luo, Qinghe Zhu, Jun Guo, Ziyuan Tan, Tiabin Shao
Summary: This study used the CESM2.1.0 model to investigate the effects of greenhouse gases and anthropogenic aerosols on the water cycle and precipitation recycling rate in drylands from 1980 to 2014. The results showed that greenhouse gases intensified the water cycle by increasing precipitation and evapotranspiration, leading to a decrease in soil water and a reduction in precipitation recycling rate. On the other hand, anthropogenic aerosols weakened the water cycle by decreasing precipitation and evapotranspiration, resulting in an increase in soil water and an increase in precipitation recycling rate.
JOURNAL OF CLIMATE
(2023)
Article
Agronomy
Yulin Jiang, Xiaogang Yin, Xiaohui Wang, Li Zhang, Zhou Lu, Yongdeng Lei, Qingquan Chu, Fu Chen
Summary: This study examines the impact of global warming on multiple cropping systems (MCS) in China, particularly under technical improvements. It finds that temperature increases have affected the cropping areas and cropping intensity of double-cropping and triple-cropping systems. The shifting cropland patterns reveal changes in agricultural practices and potential implications for food security.
Article
Green & Sustainable Science & Technology
Liping Wang, Shufeng Zheng, Xiang Wang
Summary: The study found that the grassland area in the northern Songnen Plain showed dramatic changes from 1990 to 2020, with the most significant changes in the last period. Climate factors played a significant role in these changes, with precipitation having a greater impact on the reduction of grassland. The main internal conversion of grassland occurred between high coverage and medium coverage grassland.
Article
Biodiversity Conservation
Jessica S. J. Grenke, Edward W. Bork, Cameron N. Carlyle, Mark S. Boyce, James F. Cahill
Summary: The impacts of AMP grazing system management on plant diversity are minor, but it could hinder the conservation of native plant species.
JOURNAL OF APPLIED ECOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Dennis S. Ojima
Summary: The Northern Great Plains region is crucial for providing water and land resources, but faces challenges due to changing climate and socioeconomic conditions. Rapid onset of drought and other extreme events pose significant challenges for resource managers and operators. Efforts are needed to enhance resilience and adaptive management options in response to these impacts.
CURRENT OPINION IN ENVIRONMENTAL SUSTAINABILITY
(2021)
Article
Green & Sustainable Science & Technology
X. Costoya, M. DeCastro, D. Carvalho, Z. Feng, M. Gomez-Gesteira
Summary: The Chinese offshore wind energy sector is growing rapidly, with the country expected to become the global leader in installed wind energy capacity. Future projections show varying trends in wind power density depending on the season, and most of the Chinese coastal area is classified as having good or excellent wind energy resources.
Article
Agriculture, Multidisciplinary
Zhengyuan Liang, Wopke van der Werf, Zhan Xu, Jiali Cheng, Chong Wang, Wen-Feng Cong, Chaochun Zhang, Fusuo Zhang, Jeroen C. J. Groot
Summary: This study aims to identify exemplary wheat-maize cropping systems that achieve optimal performance in terms of seven sustainability indicators. It also aims to determine the factors that contribute to the sustainability gaps between exemplary and other systems, and propose a sustainable wheat-maize prototype.
AGRICULTURAL SYSTEMS
(2022)
Article
Green & Sustainable Science & Technology
Qiang Li, Ruotong Si, Sen Guo, Muhammad Ahmed Waqas, Baogui Zhang
Summary: This study evaluates the external costs associated with pesticide usage in a specific region in China and proposes a methodology for quantifying and internalizing these costs. The results show that the negative external costs outweigh the positive external values and vary significantly depending on the environmental receptors. Based on the findings, the imposition of an ecological tax on pesticide users is recommended. This research contributes valuable insights for selecting environmentally friendly pesticides and implementing ecological taxes on pesticide usage.
Article
Environmental Sciences
Yan Guo, Haoming Xia, Li Pan, Xiaoyang Zhao, Rumeng Li
Summary: This study developed a phenology-based algorithm to accurately identify double-cropping fields in China and analyzed the spatial-temporal dynamics of double cropping. The findings provide a scientific basis for the further development and planning of agricultural production in China.
Article
Geochemistry & Geophysics
Mina Kang, Myoung-Hwan Ahn, Dai Ho Ko, Jhoon Kim, Dennis Nicks, Mijin Eo, Yeeun Lee, Kyung-Jung Moon, Dong-Won Lee
Summary: The Geostationary Environment Monitoring Spectrometer (GEMS) provides air-quality information in the Asia Pacific region with high spatiotemporal resolution. To ensure trace gas retrieval reliability, accurate assessment of the spectral response function (SRF) is crucial. Analysis of prelaunch and inflight SRFs show a highly homogeneous and stable optical system of GEMS, with prelaunch SRFs best represented by asymmetric super Gaussian (ASG) function.
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
(2022)
Article
Environmental Sciences
Juseon Bak, Odele Coddington, Xiong Liu, Kelly Chance, Hyo-Jung Lee, Wonbae Jeon, Jae-Hwan Kim, Cheol-Hee Kim
Summary: This study evaluated a new high-resolution solar reference spectrum for OMI measurements and ozone profile retrievals. The TSIS-1 HSRS showed improved performance compared to the previous SAO2010 in terms of radiometric uncertainties, fitting residuals, and ozone profile retrievals.
Article
Environmental Sciences
Sulaiman Ali Mohammad, Mohd Riduan Ahmad, Mardina Abdullah, Park Sangjong, Shamsul Ammar Shamsul Baharin, Norbayah Yusop, Gaopeng Lu, Vernon Cooray
Summary: This paper presents the temporal characteristics of electromagnetic fields produced by cloud-to-ground (CG) lightning flashes associated with Antarctica storms. The study recorded 51 positive CG (+CG) and 103 negative CG (-CG) flashes using a magnetic direction finder (MDF) sensor. The analysis revealed that the temporal characteristics of the lightning flashes in Antarctica storms are comparable to those in other geographical regions. The smaller peak currents observed could be attributed to the small magnitude of the cloud charges in Antarctica compared to other regions.
Article
Environmental Sciences
Hana Lee, Taejin Choi, Seong-Joong Kim, Juseon Bak, Dha Hyun Ahn, Natalya Alekseyevna Kramarova, Sang Seo Park, Jhoon Kim, Ja-Ho Koo
Summary: This study evaluates ozone profiles retrieved from three widely used satellite measurements using ozonesonde measurements from 2015 to 2018 in the southeastern Antarctic region. The results show that the quality of all three satellite ozone profiles is comparable, with OMI ozone profiles being relatively less qualified. The study also highlights the influence of a priori ozone profiles on the accuracy of satellite ozone profiles.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Kyunghwa Lee, Mijeong Kim, Myungje Choi, Jhoon Kim, Yunsoo Choi, Jaehoon Jeong, Kyung-Jung Moon, Sojin Lee
Summary: Satellite observations are widely used in atmospheric sciences to provide aerosol information. However, the coverage of aerosol data from satellite observations can sometimes be of inferior quality. To fill the gaps in aerosol optical depths obtained from geostationary ocean color imager observations, this study applies various statistical techniques and identifies the Poisson and linear RBF methods as the most accurate. Weighted averages are then employed to further improve the results. The 2D-WAVG method shows the highest correlation over all regions, making it a reliable and fast solution for providing spatial-temporal continuous aerosol information.
JOURNAL OF APPLIED REMOTE SENSING
(2022)
Article
Meteorology & Atmospheric Sciences
Sujin Eom, Jhoon Kim, Seoyoung Lee, Brent N. Holben, Thomas F. Eck, Sung -Bin Park, Sang Seo Park
Summary: In this study, we analyzed the trends of aerosol types in Korea, China, and Japan using data from Aerosol Robotic Network (AERONET), Visible Infrared Imaging Radiometer Suite (VIIRS), and Ozone Monitoring Instrument (OMI). Our results showed decreasing trends in aerosol optical depth (AOD), angstrom exponent (AE), and fine mode fraction (FMF) in all countries, which can be attributed to the reduction of anthropogenic emissions. The proportions of carbonaceous aerosols (CA) and non-absorbing aerosols (NA) also decreased based on both ground and satellite data. Changes in aerosol types and properties were observed in both ground and satellite data, indicating a steady decrease in fine aerosol pollution in East Asia.
ATMOSPHERIC RESEARCH
(2022)
Article
Environmental Sciences
Heesung Chong, Seoyoung Lee, Yeseul Cho, Jhoon Kim, Ja-Ho Koo, Yong Pyo Kim, Younha Kim, Jung-Hun Woo, Dha Hyun Ahn
Summary: Due to a lack of reliable data, the air quality in North Korea remains poorly understood. Through multi-year satellite observations, it was found that Pyongyang, Nampo, Pukchang, and Munchon are pollution hotspots in North Korea. From 2005 to 2018, North Korea experienced significantly higher concentrations of nitrogen dioxide (NO2), sulfur dioxide (SO2), and carbon monoxide (CO) per unit primary energy supply compared to South Korea.
ENVIRONMENT INTERNATIONAL
(2023)
Article
Geochemistry & Geophysics
Hyunkwang Lim, Jhoon Kim, Seoyoung Lee, Yasuko Kasai, Sang Seo Park
Summary: This study attempted to retrieve aerosol layer height (ALH) using the Advanced Himawari Imager (AHI) to monitor diurnal changes in ALH and understand long-range transport. Aerosol optical properties (AOPs) were retrieved using the green-near infrared (NIR) band and then used to compute the top-of-atmosphere (TOA) reflectance of a highly sensitive band. The ALH was retrieved using the observed and calculated TOA reflectances.
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
(2023)
Article
Geography, Physical
Jaemin Hong, Jhoon Kim, Yeonjin Jung, Woogyung Kim, Hyunkwang Lim, Sujong Jeong, Seoyoung Lee
Summary: In this study, a retrieval algorithm of XCO2 (YCAR) was developed based on the Optimal Estimation method using aerosol information from CALIPSO and MODIS data. The retrieval results were validated to ground-based measurements from TCCON, showing good consistency. The study demonstrated the importance of using multiple satellite data and better treatment of aerosol information for improving the accuracy of XCO2 retrieval algorithm.
GISCIENCE & REMOTE SENSING
(2023)
Article
Meteorology & Atmospheric Sciences
Minseok Kim, Jhoon Kim, Hyunkwang Lim, Seoyoung Lee, Yeseul Cho, Huidong Yeo, Sang-Woo Kim
Summary: This study assessed the retrieval of aerosol top height (ATH) using different viewing geometries from a pair of geostationary imagers. The stereoscopic algorithm accurately estimated ATH by calculating the parallax of lofted aerosol layers using image-matching. Comparison with CALIOP extinction profiles showed that 88.9% of ATH estimates from AHI and AGRI were within 2 km of CALIOP 90% extinction heights, with an RMSD of 1.66 km. The ability of the stereoscopic algorithm to monitor hourly aerosol height variations was demonstrated by comparison with a Korea Aerosol Lidar Observation Network dataset.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2023)
Article
Meteorology & Atmospheric Sciences
John E. Yorks, Jun Wang, Matthew J. McGill, Melanie Follette -Cook, Edward P. Nowottnick, Jeffrey S. Reid, Peter R. Colarco, Jianglong Zhang, Olga Kalashnikova, Hongbin Yu, Franco Marenco, Joseph A. Santanello, Tammy M. Weckwerth, Zhanqing Li, James R. Campbell, Ping Yang, Minghui Diao, Vincent Noel, Kerry G. Meyer, James L. Carr, Michael Garay, Kenneth Christian, Angela Bennedetti, Allison M. Ring, Alice Crawford, Michael J. Pavolonis, Valentina Aquila, Jhoon Kim, Shobha Kondragunta
Summary: A SmallSat mission concept called TOMCAT is proposed to carry out time-varying optical measurements of clouds and aerosol transport from space. TOMCAT aims to statistically resolve diurnal and vertical variation of cloud properties, determine the impacts of boundary layer diurnal variation on air quality and cloud distributions, and characterize smoke and dust emission processes. TOMCAT plans to deliver its data products in near-real time and offer hazard-monitoring capabilities for smoke, dust, and volcanic plumes.
BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY
(2023)
Article
Environmental Sciences
Laura Hyesung Yang, Daniel J. Jacob, Nadia K. Colombi, Shixian Zhai, Kelvin H. Bates, Viral Shah, Ellie Beaudry, Robert M. Yantosca, Haipeng Lin, Jared F. Brewer, Heesung Chong, Katherine R. Travis, James H. Crawford, Lok N. Lamsal, Ja-Ho Koo, Jhoon Kim
Summary: Aircraft observations from the KORUS-AQ campaign suggest that the GEOS-Chem CTM can accurately compute the vertical profiles of NO2, which are influenced by the diurnal variation in mixing depth. This finding helps explain the diurnal variation in NO2 and its implications for air quality.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2023)
Proceedings Paper
Geosciences, Multidisciplinary
James H. Crawford, Katherine R. Travis, Laura M. Judd, Barry L. Lefer, Jack E. Dibb, Jhoon Kim, Rokjin Park, Gangwoong Lee, Limseok Chang, James Bernard B. Simpas, Maria Obiminda L. Cambaliza, Ronald C. Macatangay, Vanisa Surapipith, Narisara Thongboonchoo, Nguyen Thi Kim Oanh, To Thi Hien, Bich Thuy Ly, Abdus Salam, Sachin D. Ghude, Mohd Talib Latif, Liya E. Yu, Hiroshi Tanimoto, Yugo Kanaya
Summary: The Airborne and Satellite Investigation of Air Quality (ASIA-AQ) is an international field study concept that aims to improve understanding of specific air quality issues in Asia and the challenges in interpreting satellite observations. The study plans to begin in early 2024.
2022 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS 2022)
(2022)
Article
Meteorology & Atmospheric Sciences
Drew C. Pendergrass, Shixian Zhai, Jhoon Kim, Ja-Ho Koo, Seoyoung Lee, Minah Bae, Soontae Kim, Hong Liao, Daniel J. Jacob
Summary: This study utilizes aerosol optical depth (AOD) data from the Geostationary Ocean Color Imager (GOCI) instrument in East Asia from 2011 to 2019 to estimate 24-hour daily surface PM2.5 concentrations in eastern China, South Korea, and Japan. The random forest (RF) algorithm is applied to predict PM2.5 concentrations using the AOD data and other information, achieving high correlation with network observations and demonstrating the value of GOCI PM2.5 fields for air quality testing.
ATMOSPHERIC MEASUREMENT TECHNIQUES
(2022)
Article
Environmental Sciences
Sujung Go, Alexei Lyapustin, Gregory L. Schuster, Myungje Choi, Paul Ginoux, Mian Chin, Olga Kalashnikova, Oleg Dubovik, Jhoon Kim, Arlindo da Silva, Brent Holben, Jeffrey S. Reid
Summary: The iron-oxide content of dust in the atmosphere, specifically hematite and goethite, was retrieved using measurements from the EPIC instrument on the DSCOVR satellite and the MAIAC algorithm. Comparisons were made with in situ measurements and published data, showing variations within the expected ranges. The study revealed differences in iron-oxide concentrations in dust particles from different regions, which will be valuable for dust shortwave DRE studies and climate modeling.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2022)
